Stopcock for gas mains



Sept. 7 1926.

' P. STEIN STOPCOCK FOR GAS mums Fil ed Jan. so. 1926 Patented Sept. 7,1926.

, UNITED STATES PATENTf-oFrICE.

PETER STEIN, or CHICAGO, ILLINOIS, ASSIGNOR or ONE-HALF T0 enonen A.round, a or CHICAGO, ILLINoIs.

STOPCOCK FOR GAS MAINS.

1 Application i filed January This invention (has general relation tofluid pressure systems, but has particular relationtomeans'for'introducing into gas or otherfiuid while being conductedthrough a pipe, such as a gas main, means or material to prevent themoisture contained in the gas or fluid freezing, and thereby stopping orretarding its flow through or to the proper service pipes.

The principal object of the invention is to furnish a very simple,inexpensive yet highly efficient stop cock for. gas mains and the likeof such construction, arrangement and combination of its parts to affordeasy and efficient means for turning on or off the fluid or gas, whendesired, and when it is turned off, for supplying a container associatedwith said cock and the main pipe, with a quantity of alcohol or othervolatile and anti-freezing material to be subjected to the gas whenagain turned on.

A further ob ect is, to provide means for i preventing access to saidcontainer and its contents, by an unauthorized person, or except, whenthe gas is turned off.

Other objects and advantages of the in' vention will be disclosed. inthe following description and explanation, which will be more readilyunderstood when read in conjunction with the accompanying drawing inwhich an embodiment of the invention is illustrated, it being understoodthat changes and modifications therein may be resorted tov withoutdeparting from the spirit of the invention, so long as they fall withinthe scope of the appended claims which form a part hereof.

Referring now to the drawing:

Figure 1 is a plan view of this stop cock and a portion of the gas'main,and

Figure 2 is a longitudinal sectional view taken online 2, 2 of Figure 1,looking in the direction indicated by the arrows.

In the drawing, the gas mainor a part thereof, is shown and designatedby the separate sections 3, and 4, thereof, between which sections ismounted a depending container, 5, which is preferably rectangular inshape, and may be of any suitable size and material. This container hasat the upper portion of one of its ends an internally screw threadedboss, 6, and at its opposite end, a short pipe extension, 7, both ofwhich elements communicate with the container 5. The member 7 isprovided with an extension 30, 1826. SeriaI No. 84,932.

"8, which is internally screw threaded and and held in place by means ofan annular washer, 12, and a nut, 13,the latter being inscrew'engagement with the valve 10.

Rigidly mountedon the upper portion of the valve 10, is a gu'ard plate,14, which is provided with diametrically disposed cutaway portions, 15,as shown in Fig. 1 of the drawing. Above the plate 14, the valve 10, hasfixed thereon a nut, 16, to be used for turning the same. In the top ofthe container 5, near the member 7, is provided an opening 17, for

the supply of alcohol, 18, to the container,

which opening may be closed by means of a,

plug, 19, or otherwise.

From the foregoing, and by reference to the drawing, it will be'readilyunderstood and clearly seen that assuming the parts are in the positionshown in Fig. 2, of the drawing, the valve 10, will be open so as toallow the free passage of gas through the sections 3 and 4c of the main,as indicated by the arrows, thus allowing the gas to be subjected to thealcohol, 18, of the container and thus prevent freezing of the moisturecontained by the gas. By turning the valve, say onequarter of the wayaround, it is obvious that the flow of gas will be shut OE and that atthe same time the plug or closure 19, will be exposed through one of thecut-away recesses 15, in the guard plate 14, so as to permit of theremoval or insertion of said plug.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is-' '1. In a device of the class described,the combination ofa gas main having two fixed pipe sections spacedapart, a container located between said pipe sections and incommunication therewith, said container having a chamber out of linewith the direct path of travel of the gas from one of said sections tothe other section but exposed to said path, a removable closure locatedin the upper part of the containernear the adjacent end. of one of saidpipe sect-ions, a sh'ut-oflf valve rotatably mounted in the path oftravel of the gas. near said closure and a guard plate fixed on saidvalve and having a part extended over said closure when the said valveoccupies an open position.

2. In a device of the class described the combination of a gas; nlain-lfiav-ingtwo pipe sections spaced apart. a container located betweensaid pipe sections and in communication therewith, said containerdepending in part from said sections, a removable closure located in theupper part of the container near the adjacent end of one of said pipesections, a shut-off valve iotatably mounted in the path of travel ofthe gas near said closure, and a guard plate fined 'on' said valve andhaving a part extended over said closure when the said valve occupies anopen position, and cutaway on each side of the valve to permit theclosure to be removed when the valve is turned to a closed position ineither direction.

PETER iSTElN.

